I am unable to set a different linetype for the bottom surface.
set hidden3d offset 1
does not set different linetypes for the top and bottom surfaces. Am I doing something wrong? This seems to only be a problem from version 4.6 onwards.
This is a bug that is triggered if you have no linetypes defined. See "help linetype".
I do not fully understand the bug, but for now a work-around is to say:
set linetype 1 lc 1
That logically should have no effect at all, since it just sets the line to its own color. But as a side effect it flips the line color processing into palette/rgb mode (independent of whether you are actually using either of these), and this bypasses the bug.
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